Keeping stress away may not be possible all the time, but one can always mitigate it. The ideal therapy is Yoga Meditation, a systematic process in which you work with the more external aspects of your being, and then move inward, with more subtle practices, which gently take you to mediation.
the specific stretches or postures, survey or relaxation methods, breathing practices and types of meditation will also vary, depending on your level of expertise and predispositions.
The amount of time spent with each of the practices may differ, depending on your training and predispositions. The total length of practice (all four) may also very (the 60-minute clock in the picture above is just an example). These four practices, when done in a systematic manner, will surely lead to a deeper state of meditation.